Knative Intro
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The document outlines the author's professional journey from Riot Games to VMware, detailing their contributions to cloud infrastructure projects, particularly in Knative and Kubernetes. It highlights Knative's role in simplifying the complexities of Kubernetes for developers and describes its specifications and eventing capabilities. Additionally, it mentions upcoming milestones such as Knative 1.0 and various managed Knative offerings across different cloud platforms.
Knative Intro
- 2. Who am I? ● Riot Games (2012 - 2015) ○ Thrown under the bus to work on an emerging infra project (chef targeting VMs) ● Google (2015 - 2019) ○ Tried my hand at desktop apps, Chrome. Thought about farming instead. ○ Transferred into Google Cloud, worked on OSS - Kubernetes Service Catalog ■ I joined when the project was still an aggregated API server, made the case for CRDs ○ Fought hard for the team to pivot to the “Kubernetes Resource Model” ■ End result: Google Config Connector. ○ Bounced out before it got going, thought the world needed Knative First. ■ Landed in Knative Eventing. ■ Started the Eventing Sources Working Group. ■ Became a Productivity Working group leave several months ago. ● VMware (2019 - present) ○ Keeping the Knative OSS dreams alive. ■ Vote for me! I am running for Knative ToC 2021 :D
- 3. Framing
- 4. Database gateway Frontend Backend Messaging Internet Application Requirements ● Gateway ● Frontend Box(es) ● Backend Box(es) ● Messaging Broker ● Database
- 5. Database Gateway Frontend Backend Messaging Internet Backend Static FE Requirements ● Gateway ● Frontend Box(es) ● Serverless Frontend ● Backend Box(es) ● Serverless Backend ● Messaging Broker ● Database(s)
- 6. Ship it. We are going to Amazon.
- 8. Reship it! We are moving to Google...
- 10. Kubernetes! We never want to migrate again...
- 12. Kubernetes is hard. ● Low level resources let you build anything you want. ● Hope you do it right. Knative helps manage some of that complexity. ● Higher level resources based on core Kubernetes. ● Focused solutions for the hard but boring parts.
- 13. Database Gateway Frontend Backend Messaging Internet Backend Static FE 1 1 1 1 2 Mix and match k8s and Knative
- 14. Knative Builds on Kubernetes We aim to reduce the cognitive load a developer needs to hold to get their work done. Knative does not prevent you from using any other Kubernetes resource or extension you might install. Kubernetes pros can continue doing what they do. Newbies have a smoother on-ramp onto Kubernetes.
- 15. Knative Serving
- 16. spec: container: image: gcr.io/knative-samples/simple-app:latest env: - name: SIMPLE_MSG value: "Hello K8s Meetup Atlanta!" Service Knative Serving Knative Serving defines primitives with clear separation of concerns Service, lite version of Knative Serving objects
- 17. Configuration Service Knative Serving Knative Serving defines primitives with clear separation of concerns Configuration Current/desired state for your application Code & configuration (separated, ala 12 factor)
- 18. Revision Configuration Service Knative Serving Knative Serving defines primitives with clear separation of concerns Configuration Current/desired state for your application Code & configuration (separated, ala 12 factor) Revision Point in time snapshots for your code and configuration
- 19. Revision Route Configuration Service Knative Serving Knative Serving defines primitives with clear separation of concerns Configuration Current/desired state for your application Code & configuration (separated, ala 12 factor) Revision Point in time snapshots for your code and configuration Route Maps traffic to a revisions Supports fractional, named routing
- 20. Serving Demos!
- 21. Knative Eventing
- 22. <sink> <source> Knative Eventing Knative Eventing defines an abstraction on top of known eventing patterns Best practice eventing systems decouple the event source from the event consumer.
- 23. Broker <source> Knative Eventing Knative Eventing defines an abstraction on top of known eventing patterns Broker Accept and persist streams of events.
- 24. Broker <sink> <source> Trigger Knative Eventing Knative Eventing defines an abstraction on top of known eventing patterns Broker Accept and persist streams of events. Trigger Filter and route events to subscribers.
- 25. Eventing Demos!
- 27. Knative is a Specification, and Reference Implementation ● Specification ○ https://github.com/knative/specs ● Reference Implementations ○ https://github.com/knative/serving ○ https://github.com/knative/eventing Other implementations of Serving exist that are not coupled with Kubernetes: Google Cloud Run:
- 28. gcloud beta run services replace hello.yaml kubectl apply -f hello.yaml apiVersion: serving.knative.dev/v1 kind: Serving metadata: name: hello spec: container: image: gcr.io/knative-samples/simple-app:latest env: - name: SIMPLE_MSG value: "Hello K8s Meetup Atlanta!"
- 29. Knative Milestones Soon: ● Knative 1.0 ● Knative Certification program. Managed Knative: ● VMware Tanzu Advanced - https://tanzu.vmware.com/tanzu/advanced ● IBM Cloud - https://www.ibm.com/cloud/knative ● Red Hat Open Shift - https://openshift.com/learn/topics/serverless ● Google Cloud Run for Anthos - https://cloud.google.com/anthos/run ● And several others...